Here are some simple tips:
- Switch out of defensive focus, its the worst doctrine by far. Personally i'd just go with Mobility for the sweet GDE (and tank bonuses).
- Immediately, as soon as humanly possible, start building land forts along your entire frontline. Focus on the belgium border and work your way down. You must build at least lvl 9 forts in all the frontline.
- Get all your infantry from all over the world back to the mainland, including your navy which although old by WW2 standards will heavily aid you vs any german raiders.
- Give your infantry artillery and either AA or AT (i prefer AT), to give it extra oomph against the german armor.
- By '39, with your dissent set to zero and your army grown, man the Marginot line as well as your entire border. If you've been building tanks, keep at least 3 or 6 div corps on your front. You need at least 9, preferably 12, per territory.
- You can launch a pretty efficient crippling raid unto Germany from Marginot if you want to try it risky, but i'd recommend against it.
- Once the germans DOW the netherlands/belgium, dont move forward and let them get absorbed. The UK might send you some units so use them if you can (or do what i do and let the AI sit there and run around as firefighters).
- The german attack will stall heavily; the AI will not, even with aggressive, attack super forts of lvl 10 unless it has like a 3-to-1 advantage, and even then it will suffer tremendously high losses. If you've been building interceptors or have some spare ones use them to destroy enemy airplanes on French soil.
- At this point, you can do a lightning raid of the italians, when they DOW you. With your armored units you can easily overrun 10-30 italian divisions and cripple their northern industry, as well as adding it to your own. If you push hard and fast enough you can even make them switch sides, which is always amusing.
- From now on, you can have a bit of an attritional war with the Germans, counterattacking positions that give you location advantages (3 sides to 1) and inflict terrible losses on the german divisions like that. At around '42 or '43, the soviets will eventually DOW the germans and then you can slowly grind them backwards (though again, i usually let them bleed the russians a bit and wait till their MP runs out; the soviets lose all their AI bonuses if they are the aggressors on the germans, so no more 0.1 IC infantry for them
)))
Ill try it tomorrow.